======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '324'
                                          'artist'  'Astrix'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Afrika Sun'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  ("['trance', 'goa', 'psychedelic trance', 'psytrance', 'electronic', "
 "'psychedelic']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-th-trance'
                                             'bpm'  '147.991867'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

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'PCNT' (Play counter)                               PCNT(count=0)
'POPM:traktor@native-instruments.de'                POPM(email='traktor@native-instruments.de', rating=0, count=0)
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-trance'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Afrika Sun'
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '324000'
'TPE1' (Lead performer(s)/Soloist(s))               'Astrix'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:TraktorID'                                    '04-AUU0NEQzREMjZEMkd4mZmIiIiJiYiIm7mZiZmJiYmYmJmamZmJiYiZmJmJh5mZmZmYmZmamWe4h4iYiHiIqIiIiIiIiIiIiKqIiIiHiIiIiIirMQASIjMzMzMzMzREZlRFVURVVVZniakkqpqZmZmampmZmKqZmpmbuZmpmZq4d3d3d7p3eIebu3d3iIirh4d3d1uYiIiIq5iIiJvKIUMiIiIiMzMjMzekQ0pTM5UzSWMyiEhVhYmZR2SFeZlWdIaKq3ioub3rEBJBJppYqYmJqpmZiYmayamJmZqpqYmYmpmZiZiZqZmJmJmpqYiIiIiIiIiIiKmIiIiIiIiIiIgA'
'TXXX:TraktorPeakDB'                                '0.091500'
'TXXX:TraktorPerceivedDB'                           '2.099466'
'TXXX:discogstags'                                  'electronic'
'TXXX:fBPM'                                         '147.991867'
'TXXX:fBPMQuality'                                  '0.736381'
'TXXX:lastfmtags'                                   ['trance',
 'goa',
 'psychedelic trance',
 'psytrance',
 'electronic',
 'psychedelic']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.06 dB'
'TXXX:replaygain_track_peak'                        '0.588444'

========================== row from database ==========================
                                              'id'  1353715
                                            'path'  /data/Music/Bulk/00poprockelectronic/Astrix/more/astrix - afrika sun.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  324
                                           'genre'  electronic-th-trance
                                        'filesize'  5203937
                                           'mtime'  1621696753
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic more astrix afrika sun electronic th trance
                                      'tag_artist'  Astrix
                                     'tag_release'  None
                                       'tag_title'  Afrika Sun
                                             'bpm'  147.992
                                    'search_title'  'afrika':1 'sun':2
                                   'search_artist'  'astrix':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'afrika':4 'astrix':3 'electronic':6 'more':2 'sun':5 'th':7 'trance':8
                                    'search_combo'  '00poprockelectronic':4 'afrika':1A,7 'astrix':3B,6 'electronic':9 'more':5 'sun':2A,8 'th':10 'trance':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['trance', 'goa', 'psychedelic trance', 'psytrance', 'electronic', 'psychedelic']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696752.8019216  (2021-05-22 17:19:12)
                             'size'  5203937